Help:CS1 errors: Difference between revisions

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{{#invoke:Cs1 documentation support|help_text_error_messages|err_invalid_isbn_date}} – this error message hidden by default

[[ISBN]]s were created c. 1965. Books published before that date will not have been issued an ISBN.

[[ISBN]]s were created c. 1965. Books published before that date will not have been issued an ISBN. However, reissues of pre-ISBN publications <em>are</em> issued ISBNs, even barring the publication of a new edition. Consider double-checking whether the ISBN is valid before removing it.

To resolve this error:

~~: remove~~ the ISBN when citing a source published before 1965

* Remove the ISBN when citing a source published before 1965.

~~: if~~ the edition of the ~~cited~~ book was published after 1965, ensure that {{para|date}} or {{para|year}} has the correct publication year.

** If the cited edition or reissue of the book was published after 1965, ensure that {{para|date}} or {{para|year}} has the correct publication year. The reissue date is typically available by querying [[WorldCat]] with the reissue's ISBN. Adding {{para|orig-date}} may be appropriate in such cases; e.g., {{para|orig-date|1st Pub. 1929}}.

~~:: adding~~ {{para|orig-date}} may be appropriate in such cases; e.g., {{para|orig-date|1st Pub. 1929}}

Pages with this error are automatically placed in {{#invoke:cs1 documentation support|help_text_cats|err_invalid_isbn_date|pages=yes}}.<ref group="lower-alpha" name="categories" /><section end="invalid_isbn_date_help_text" />

@@ Line 1,209: / Line 1,209: @@
 {{#invoke:Cs1 documentation support|help_text_error_messages|err_invalid_isbn_date}} – this error message hidden by default
-[[ISBN]]s were created c. 1965.  Books published before that date will not have been issued an ISBN.
+[[ISBN]]s were created c. 1965. Books published before that date will not have been issued an ISBN. However, reissues of pre-ISBN publications <em>are</em> issued ISBNs, even barring the publication of a new edition. Consider double-checking whether the ISBN is valid before removing it.
 To resolve this error:
-: remove the ISBN when citing a source published before 1965
+* Remove the ISBN when citing a source published before 1965.
-: if the edition of the cited book was published after 1965, ensure that {{para|date}} or {{para|year}} has the correct publication year.
+** If the cited edition or reissue of the book was published after 1965, ensure that {{para|date}} or {{para|year}} has the correct publication year. The reissue date is typically available by querying [[WorldCat]] with the reissue's ISBN. Adding {{para|orig-date}} may be appropriate in such cases; e.g., {{para|orig-date|1st Pub. 1929}}.
-:: adding {{para|orig-date}} may be appropriate in such cases; e.g., {{para|orig-date|1st Pub. 1929}}
 Pages with this error are automatically placed in {{#invoke:cs1 documentation support|help_text_cats|err_invalid_isbn_date|pages=yes}}.<ref group="lower-alpha" name="categories" /><section end="invalid_isbn_date_help_text" />